Chess Opening Theory/1. c4
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< Chess Opening Theory(Redirected from Chess/English Opening)
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Position in Forsyth-Edwards Notation(FEN)
rnbqkbnr/pppppppp/8/8/2P5/8/PP1PPPPP/RNBQKBNR |
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| Moves: 1.c4 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| ECO code: A10-A39 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Contents |
[edit] English Opening
[edit] 1. c4
This opening is very flexible. It can transpose into many others:
- 1...e5 is a "reversed" Sicilian Defence.
- 1...c6 will usually either transpose into the Caro-Kann Defence or the Slav Defence.
- 1...e6 will probably end up in a Queen's Gambit Declined.
- 1...Nf6 or 1...g6 are likely to transpose into an Indian Defence.
- 1...d5 is seldom played but may transpose into the Queen's Gambit.
- 1...f5, the Anglo-Dutch Defence, leads to sharp tactical lines for black, but can open a powerful kingside attack.
- 1...b5 normally gives good chances for black, even though the Halibut Gambit is considered unsound at the professional level.
Most "pure" English lines come from the Symmetrical Variation : 1...c5, quite hard to play and to understand.
[edit] Statistics
Approximately chances: White win 37%, Draw 34%, Black win 29%
Estimated next move popularity: Nf6 31%, e5 23%, e6 13%, c5 12%, g6 8%, c6 6%, f5 4% other moves less than 2%
[edit] Theory table
For explanation of theory tables see theory table and for notation see algebraic notation.
| 1.c4 | ||||||
|---|---|---|---|---|---|---|
| 1 | 2 | 3 | 4 | 5 | ||
| c4 Nf6 |
Nc3 e6 |
e4 c5 |
e5 Ng8 |
Nf3 Nc6 |
∞ | |
| ... e5 |
Nc3 Nc6 |
Nf3 Nf6 |
g3 d5 |
cxd5 Nxd5 |
∞ | |
| Symmetrical Variation |
... c5 |
Nf3 Nf6 |
g3 b6 |
Bg2 Bb7 |
O-O g6 |
= |
| ... c6 |
Nf3 d5 |
g3 Nf6 |
Bg2 dxc4 |
O-O Nbd7 |
∞ | |
| ... g6 |
e4 e5 |
d4 Nf6 |
dxe5 Nxe4 |
Bd3 Nc5 |
∞ | |
| ... e6 |
Nc3 Bb4 |
Qb3 Nc6 |
Nf3 Nf6 |
a3 Bxc3 |
∞ | |
| ... f5 |
Nf3 Nf6 |
g3 g6 |
Bg2 Bg7 |
O-O O-O |
∞ | |
| ... d5 |
cxd5 Qxd5 |
Nc3 Qa5 |
+= | |||
| ... b5 |
cxb5 a6 |
bxa6 Bxa6 |
+= | |||
| Myers Defence | ... g5 |
d4 Bg7 |
Nc3 h6 |
e4 |
+= |
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[edit] References
- Modern Chess Openings: MCO-14. 1999. Nick de Firmian, Walter Korn. ISBN 0-8129-3084-3.
- Batsford Chess Openings 2 (1989, 1994). Garry Kasparov, Raymond Keene. ISBN 0-8050-3409-9.
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